Knowshon injured in Broncos debut

While Matthew Stafford had a solid debut with the Detroit Lions on Saturday, his former Georgia teammate didn't fare so well with the Denver Broncos.

Knowshon Moreno was injured after just three carries in the Broncos' 17-16 loss to the San Francisco 49ers on Friday night.

Moreno suffered a mild MCL sprain in his knee, according to ESPN.com. He is expected to be miss about 2 weeks and should be ready for the team's regular-season opener against the Cincinnati Bengals on Sept. 13.

The running back had 18 yards on three carries Friday. He joined the team just a week ago after signing five-year, $23 million contract on Aug. 7 that includes $13 million in guarantees.